Hey, Im looking into making my own pickup, but I cannot seem to find any cylindical magnets for it.I have been to hardware stores and have looked on the internet, but i only seem too find fridge magnets.If anyone knows any stores, websites, ect... to buy guitar PICKUP(cylindircal) MAGENTSplease list them,thx

Ps. If you could describe to which each metal(used for the magnet) sound like that would be a big help